Browse Prior Art Database

Ribbon Insertion Mechanism

IP.com Disclosure Number: IPCOM000099332D
Original Publication Date: 1990-Jan-01
Included in the Prior Art Database: 2005-Mar-14
Document File: 2 page(s) / 46K

Publishing Venue

IBM

Related People

Doi, N: AUTHOR [+4]

Abstract

Disclosed is a device for an easy ribbon insertion mechanism in a high-speed impact serial printer which eliminates the operator's finger contamination by ink.

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This is the abbreviated version, containing approximately 100% of the total text.

Ribbon Insertion Mechanism

       Disclosed is a device for an easy ribbon insertion
mechanism in a high-speed impact serial printer which eliminates the
operator's finger contamination by ink.

      The concept is the implementation of a ribbon insertion support
lever 1 between ribbon shield plate 2 and the impact print head 3 is
shown in Figs. 1 to 4.  The ribbon insertion support lever 1 is fixed
on the carrier by the hinge 6 and is rotational in the center of
hinge. The lever 1 is normally set in the return position by the
return spring 4.

      First, ribbon 5 is loaded as shown in Figs. 1 and 2. In
parallel with the support lever pushing action towards the ribbon
shield 2 by the finger, the operator should wind up the ribbon,
rotating the winding knob of the ribbon cartridge.  In this motion,
the ribbon gets the tension, slides down along the ribbon insertion
support lever 1 and is set onto the wire top of the print head
without the operator's finger being contaminated by ink, as shown in
Figs. 3 and 4.  This ribbon insertion mechanism is particularly
effective in the high-speed impact printer due to the narrow space
between the print head and the ribbon shield resulting from the short
nose nature of the high-speed print head.